SmartThings Community

Preset dimmer level based on sunrise / sunset?


#1

I’ve been trying to set up some pistons and struggling with this - if I want to set all my lights to, say, 25% regardless of whether they are on or off, is there a way to do this? Ideally I would like my lights to dim at sunset (or have the preset change if they are not on), but then be preset at full brightness for morning use.

I can set the dimmer level the way I want, but the lights all turn on. Is there a way to set the dimmer level without turning the light on? Or a clever workaround?

Thanks!


#2

Try dimming them before you turn them off. When they turn back on they should be at the last tevel that they were at before shutting off.


(MarkTr) #3

Depending on how you’re turning them on and off, I would add a condition in the turn-on trigger, i.e. if mode = night then turn on 25%, else turn on 100%. Separately, I guess you could add a piston that triggers at sunset that checks the status of each light and if it’s on, dims it to 25%.


(Steve Jackson) #4

I place my dim levels in global variables and then use the variables to set the dim level on the lights when they are turned on. This way a piston can set the level at any time without turning the lights on.


#5

Thanks for the insights. The issue I have is that I am using wall dimmers that can be turned on locally. So I need to set them to the level I want them to be at. Turning them on as a scene or from a trigger / switch / etc I could use the global variable. (Which I think I will do, just doesn’t solve this current problem).


#7

Here’s my approach right now, would like to be able to adjust the dimmer without turning the lights on at the same time but this works.


#8

Did you ever get an answer to this? I’m trying to do the same thing with my GE In-Wall Z-Wave Dimmers. I believe you can set the dim State of a Z-Wave Dimmer without having it come on. Not sure of that is something that can be done via WebCore.


#9

You can use the Smart Lighting smartapp to activate scenes at Sunrise/Sunset (with any desired offsets). Just set up your scenes as desired and trigger them with SmartLighting.


#10

No, but I have since switched to HomeSeer for local control so no longer working on this. Sorry.